21140432022 has 32 divisors (see below), whose sum is σ = 44184678912. Its totient is φ = 6736482144.

The previous prime is 21140432003. The next prime is 21140432041. The reversal of 21140432022 is 22023404112.

It is an interprime number because it is at equal distance from previous prime (21140432003) and next prime (21140432041).

It is a self number, because there is not a number n which added to its sum of digits gives 21140432022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 859573 + ... + 883824.

It is an arithmetic number, because the mean of its divisors is an integer number (1380771216).

Almost surely, 2^21140432022 is an apocalyptic number.

21140432022 is an abundant number, since it is smaller than the sum of its proper divisors (23044246890).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21140432022 is a wasteful number, since it uses less digits than its factorization.

21140432022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1743492.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 21140432022 its reverse (22023404112), we get a palindrome (43163836134).

The spelling of 21140432022 in words is "twenty-one billion, one hundred forty million, four hundred thirty-two thousand, twenty-two".